"Spring thunder and worms", warm climatic conditions are conducive to the occurrence and spread of a variety of pests and diseases, field weeds have also sprouted, and timely pest control and cultivating and weeding. "Peach blossoms, pigs come", the epidemic prevention of poultry and livestock should also be taken seriously. At this time, the temperature has risen rapidly, and most of the Yangtze River Basin has gradually become a spring thunder. In most parts of southern China, all year round rain and horror can also smell the beginning of spring thunder. In addition to individual years in northwestern China, it is generally necessary to go to Qingming to have thunder, which is the latest area where thunderstorms begin in most parts of southern China.